It’s been a weird week in the world of major cell providers. After years of moving away from offering unlimited plans after the rise of data-hungry smartphones, Verizon announced out of the blue on Sunday that it would be offering a new unlimited plan to customers again. T-Mobile, who had previously led the way by removing tiered data back in January, updated its own unlimited plan to match. The move was followed by Sprint and AT&T by the end of the week.